Two Pointers Problems

Practice 5 Two Pointers coding problems on Code Arena — from easy to hard, each with a live judge and a solution editorial.

• Move Zeroes — Easy · Arrays, Two Pointers
• Valid Palindrome — Medium · Strings, Two Pointers
• Two Sum (Sorted) — Medium · Two Pointers, Arrays
• Count Distinct (Sorted) — Medium · Two Pointers, Arrays
• Subarray With Target Sum — Medium · Sliding Window, Two Pointers, Prefix Sum

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